Granted Patent
Utility
US 6,300,620 · App. 09/310,694
Optical sensor for pointing device with conical disks and single photodetector
Inventors:
Jean-Daniel Nicoud, Rene Sommer, Marc Bidiville
Patented Case
View Patent ↗
Granted: Oct 9, 2001
Filed: May 5, 1999
Inventors
Jean-Daniel Nicoud
Rene Sommer
Marc Bidiville
Assignee (at issue)
LOGITECH, INC.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.